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EP 3 917 322 A1

(12)

(43) Date of publication: 08.12.2021 Bulletin 2021/49 (21) Application number: 20702311.0 (22) Date of filing: 03.02.2020

(51) International Patent Classification (IPC):  A21C 1/00(2006.01) A21C 1/14(2006.01) A21D 13/06(2017.01) A21C 1/02(2006.01) A21D 8/02(2006.01) (52) Cooperative Patent Classification (CPC): A21C 1/006; A21D 13/06; A21C 1/1435; A21C 1/02; A21C 1/145; A21D 8/02; A21C 1/144 (86) International application number: PCT/EP2020/052634 (87) International publication number: WO 2020/157336 (06.08.2020 Gazette 2020/32)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 03.02.2019 WO PCT/CN2019/074694 01.08.2019 EP 19189647 (71) Applicant: Koninklijke Philips N.V. 5656 AG Eindhoven (NL)	(72) Inventors: KUI, Xiao, Yun 5656 AE Eindhoven (NL) SU, Guangming 5656 AE Eindhoven (NL) LI, Ming 5656 AE Eindhoven (NL) (74) Representative: Kapoor, Pavan Puneet  Philips Domestic Appliances IP Department High Tech Campus 42 5656 AE Eindhoven 5656 AE Eindhoven (NL)